Frederick dietz



(No Model.)

F. DIBTZ.

v LAMP BURNER. N0. 575,776. v Patented Jam.l 26, 1897.A

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llmn wrlmzzzunnnf UNITED STATES PATENT OEEICE.

FREDERICK DIE'IZ, OF NEW YORK, N. Y., ASSIGNOR TO THE R. E. DIETZ COMPANY, OF SAME PLACE.

LAMP-BURNER.

SPECIFICATION forming part of Letters Patent No. 575,776, dated January .26, 1897.

Application filed February 7,1896. Serial No. 578,378. (No model.)

To @ZZ whom t may concern-.-

Beit known that I, FREDERICK DIETZ, a citizen of the United States, residing at New York, in the county and State of New York, have invented a new and useful Improvement in Lamp-Burners, of which the following is a specification. Y

This invention relates to the burner-sockets of lamps, and has the object to prevent, so far as possible, the leakage of oil between the burner and its socket and to insure the return `of the oil to the oil-pot in case any leakage should take place. In some kinds of lamps, particularly in driving-lamps, a great deal of annoyance has been experienced by the oil working up through the collar in which the burner is seated. Various attempts have been made to overcome the difficulty, but so far these attempts have not been successful.

In the accompanying` drawings, Figure l is a sectional elevation of an oil-pot and burner, showing an embodiment of my invention in which the burner is seated upon two washers in the burner-socket. Fig. Q is a fragmentary vertical section, on an enlarged scale, of the same construction. Fig. 3 is a top plan view of the burner-socket,- corresponding in scale with Fig. l. Fig. 4 is a fragmentary sectional elevation of the burner-socket, burner, and oil-pot, showing an embodiment of my invention in which .the burner is seated upon a washer in the lower end of the burner-socket. Fig. 5 is a fragmentary sectional elevation of the same construction on an enlarged scale. Fig. 6 is a fragmentary sectional elevation of the burner-socket, burner, and oil-pot, showing an embodiment of my invention in which the burner is seated upon a washer on the shoulder of the burner-socket. Fig. 7 is a fragmentary sectional elevation of the same construction on an enlarged scale. Fig. 8 is a fragmentary sectional elevation illustrating an embodiment of my invention in which projections and depressions are substituted for the screw-threads of the burner and'socket.

Like letters of reference refer to like parts in the several figures.

A represents a burner of ordinary construction provided with the usual lower cylindrical portion a, which is connected by a horizontal shoulder or offset a' with the screw-threaded lower portion b of smaller diameter and havin g the usual Wick-tube c and cone C.

D represents an oil-pot of ordinary construction.

E represents the burner-socket, which is secured in the opening in the top of the oilpot in the usual manner. The burner-socket is provid ed with an internally-screw-threaded portion f. which receives the externally-screwthreaded lower portion b of the burner. At the upper end of the screw-threaded portion fthe socket is provided with a horizontal annular portion or shoulder g, which extends outwardly to a greater or less distance beyond the outer surface of the cylindrical unthreadf ed portion a of the burner, and from that horizontal portion g rises an upright cylindricaltion of the socket is formed with an outward bulge k, forming an internal recess, into which the marginal portion of the washer is expanded by screwing the burner down and whereby the washer is securely held in the socket.

The cylindrical top portion of the socket is preferably provided with a small outwardlyturned fiange l, which forms a rest for the wick-raiser shaft m. The wick-raiser shaft has usuallya little vertical playin the burner, which is objectionable. When the burner is screwed down upon its seat or seats in the socket, the wick-raiser shaft finds a support on the drip-cup on opposite sides of the burner, whereby the shaft is steadied and the objectionable play is avoided and the burnershaft is prevented from turning easily, so that the wick cannot jar down when the burner is used in a carriage-lamp. The top Yflange of this drip-cup, which is preferably employed, forms a flat rest for the shaft and is in that respect more desirable as a support for the shaft than the upper edge of the cup.

In the constructions shown in Figs. 1, 2, 3,

i, and 5 the burner-socket is provided at its lower end with an inwardly-turned fiange n, on which rests a washer O, upon which the lower end of the burner seats itself.

In the construction shown in Figs. 4 and 5 the washer on the shoulder g of the burnersocket is omitted.

In the construction shown in Figs. G and 7 the ange and washer at the lower end ofthe socket are omitted.

In all of the constructions shown the burner-socket is provided with a horizontal shoulder or flange on which the burner is seated, and which seat is packed by an interposed washer, so that theliability of oil working up through the joint between the burner and socket is reduced to a minimum, and in all of these constructions the burner-socket is provided with an upwardly-projecting wall which surrounds the burner at a short dis tance outwardly therefrom, and which forms a drip-cup which receives and holds any oil which may accidentally work up through the joint between the burner and socket. In lamps of this class the burner is removed from the socket for filling the lamp, and upon so removing the burner any oil which may have collected in the drip-cup returns to the oil-pot.

The construction representedin Figs. G and 7 is the simplest embodiment of my invention and is most easily constructed, because the inwardly-projecting iiange at the lower end of the threaded portion of the socket is omitted. On the other hand, the construction represented in Fig. l is somewhat more oil-tight, owing to the use of two sets of contact shoulders and washers, forming two tight joints between the burner and socket.

The screw-threads in the sockets and on the burner may be replaced by other and equivalent devices by which the burner can be forced down upon' its seat or seats. For

inst-ance, as shown in Fig. S, the socket may be provided with internal studs or projections p and the burner with camshaped or inclined depressions q, which willanswer thc same purpose.

I claim as my invention- 1. The combination with an oil-pot and a screw-threaded burner, of a burner-socket having a screw-threaded lower portion which receives the threaded portion of the burner, ahorizontal shoulder extending outwardly from the upper end of said screw-threaded portion, a cylindrical upper portion surrounding the burner at a distance therefrom, an external bulge forming an internal annular recess and arranged at the junction of said shoulder with said upper portion of the socket, and a washer resting on said shoulder and confined with its marginal portion in said recess, substantially as set forth.

2. The combination with an oil-pot and a screwthreaded burner, of a burner-socket having a screw-threaded lower portion which receives the threaded portion of the burner, a horizontal shoulder extending outwardly from the upper end of said screw-threaded portion, a cylindrical upper portion surrounding the burner at a distance therefrom, an external bulge forming an internal annular recess and arranged at the junction of said shoulder with said upper portion of the socket, a shoulder extending inwardly from the lower end of said screw-threaded portion, a Washer resting on said upper shoulderand confined with its marginal portion in said recess, and a washer resting on said lower shoulder within the lower threaded part of the socket, substantially as set forth.

3. The combination with an oil-pot and a burner having a wick-raiser shaft which projects on both sides beyond the cylindrical wall of the burner, of a burner-socket secured to said oil-pot and having its upper portion composed of a cylindrical i wall which surrounds the burner at a distance therefrom and upon which the wick-raiser shaft rests on both sides of the burner, substantially as set forth.

fitness my hand this 4th day oi' February, 18913.

FREDERICK DIETZ.

lVitnesses:

THEO. Gon'rzu, OscAn WARNER. 

